/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { Injectable } from '@angular/core';

import { UserSettingsState, initialState, ServerMetaDatum } from '@app/store/reducers/user-settings.reducers';

@Injectable()
export class UserSettingsService {

  constructor() { }

  parseMetaDatumValueToStateValue(metaDatum: ServerMetaDatum): any {
    const {name, value} = metaDatum;
    switch (name) {
      case 'displayShortHostNames': {
        return value === 'true';
      }
      default: {
        return value
      }
    }
  }

  parseMetaDataToUserSettingsState(metaData: ServerMetaDatum[]): UserSettingsState {
    const parsedState = metaData.reduce((currentState, metaDatum: ServerMetaDatum) => ({
      ...currentState,
      [metaDatum.name]: this.parseMetaDatumValueToStateValue(metaDatum)
    }), {});
    return {
      ...initialState,
      ...parsedState
    }
  }

}
